I was like this, sleepless nights, freaking out etc.
I started taking one day at a time and trying not to overwhelm myself. At that stage I was simultaneously freaking out about finances, pregnancy, the birth, a baby, being responsible for a life, what if I dont bond with it, breast feeding, tantruming toddler, tantruming teenager, schooling, my relationship, my identity etc etc etc. and more.
I think I have coped and will continue to cope by breaking it up into pieces and telling myself that I dont need to worry about that bit right now. I spent a few times crying in the doctors as I was freaking out so much I started looking up abortion. I didnt want an abortion, I was just scared and it is perfectly normal to be scared.
I am due tomorrow and being pregnant has been scary, physically & emotionally crap at times but it has also been amazing and special. I am imagining that this will continue into motherhood.
Please remember your hormones are all over the place at the mo and you are undergoing a big life change, give yourself a break. A friend of mine said its like starting a new job, you cant be expected to know everything at once and day by day you learn. You will relax into it x